135347-60-3

Upstream product

• 15367-77-8 (4-Hydroxy-3,5-di-tert.-butyl-phenyl)-diphenylphosphinyl-methan 
• 719-80-2 Ethyl diphenylphosphinite 
• 51917-73-8 3,5-Di-tert-butyl-4-hydroxybenzyltrimethylammonium iodide 
• 1404287-50-8 (4-hydroxy-3,5-di-tert-butylphenyl)chloromethyldiphenylphosphine oxide 
• 1404287-49-5 (4-hydroxy-3,5-di-tert-butylphenyl)chloromethanediphenylchlorophosphonium chloride 
• 1079-66-9 chloro-diphenylphosphine 
• 87-97-8 2,6-di-tert-butyl-4-methoxymethylene-phenol 
• 88-27-7 N,N-dimethyl-(3,5-di-tert-butyl-4-hydroxybenzyl)amine 

Downstream Products

• 135347-65-8 3,5-Di-tert-butyl-4-hydroxy-α-piperidinobenzyldiphenylphosphine oxide 
• 138350-29-5 (4-hydroxy-3,5-di-tert-butylphenyl)(diethoxyphosphoryl)methyldiphenylphosphine oxide 
• 135347-62-5 diphenyl(α-phenylamino-3,5-di-tert-butyl-4-hydroxybenzyl)phosphine oxide 
• 145702-67-6 (4-Hydroxy-3,5-di-tert.-butyl-phenyl)-diphenylphosphinyl-triethoxyphosphonium-methylid 
• 485770-69-2 diphenyl [(3,5-di-tert-butyl-4-hydroxyphenyl)(ethoxy)methyl]phosphine oxide 
• 138350-31-9 3,5-di-tert.-butyl-7-diethylphosphono-7-diphenylphosphinyl-1,4-benzochinon-1-methid 
• 138350-33-1 (4-Hydroxy-3,5-di-tert.-butyl-phenyl)-bis-(diethylphosphono)-diphenylphosphinyl-methan 
• 138350-34-2 (4-Hydroxy-3-diphenylphosphinoxido-5-tert.-butyl-phenyl)-diethylphosphono-diphenylphosphinyl-methan 
• 1404287-52-0 (4-hydroxy-3,5-di-tert-butylphenyl)(diethylphosphinyl)methyldiphenylphosphine oxide 

Relevant academic research and scientific papers

Addition of phthalimide and acetone to phosphorylated methylene quinones

New method for synthesis of phosphorylated methylene quinones via bromination of the sterically hindered phenol [prepared via benzylation of secondary chlorophosphines with 4-(methoxymethyl)-2,6-di-tert-butylphenol] with N-bromosuccinimide followed by dehydrobromination with trimethyl orthoformate has been developed. Tertiary phosphine oxides containing the fragment of sterically hindered phenol and amine or acetonyl group have been synthesized for the first time in the reaction of phosphorylated methylene quinones with N- and C-nucleophiles.

Synthesis of (4-hydroxy-3,5-di-tert-butylphenyl)- chloromethanediphenylphosphine oxide and its reactions with aprotic nucleophilic reagents

Reaction of (4-hydroxy-3,5-di-tert-butylphenyl) chloromethanediphenylchlorophosphonium chloride with trimethyl orthoformate affords (4-hydroxy-3,5-di-tert-butylphenyl)chloromethanediphenylphosphine oxide. The latter undergoes dehydrochlorination under the

α-SUBSTITUIERTE PHOSPHONATE 62. TRIETHOXYPHOSPHONIUM-YLIDE BZW.-BETAINE AUS TRIETHYLPHOSPHIT UND 7-PHOSPHORYL-CHINONMETHIDEN, SYNTHESE UND REAKTIVITAET

By addition of triethylphosphit (TEP) to the 7-diethylphosphono- or 7-diphenylphosphinyl-3,5-di-tert.-butyl-quinone methides 4a,b are formed by proton transfer, the surprisingly stable triethoxyphosphonium ylides 14a,b and not the expected phosphonium-bet

SYNTHESIS AND PROPERTIES OF PHOSPHORYLATED 2,6-DI-BUTYL-4-METHYLENE-2,5-CYCLOHEXADIENONES

The products of the oxidation of phosphorylated sterically hindered phenols, proceeding via the intermediate formation of phosphorylated phenoxyl radicals, are phosphorylated 4-methylene-2,5-cyclohexadienones.The reaction of amines (aniline, piperidine) with phosphorylated 4-methylene-2,5-cyclohexadienones results in 1,6-addition products.